python paramiko

paramiko基于SSH连接ssh Server执行操作（SSHClient远程连接，SFTPClient上传下载)

```
pip install paramiko
```

简单示例

import paramiko


ssh = paramiko.SSHClient()  # 创建ssh客户端
know_hosts = paramiko.AutoAddPolicy()  # 创建ssh白名单
ssh.set_missing_host_key_policy(know_hosts)  # 加载白名单
ssh.connect(  # 链接server
    hostname='192.168.100.41',
    port=22,
    username='root',
    password='aegis'
)
stdin, stdout, stderr = ssh.exec_command('ip r')  # 执行命令
print(stdout.read().decode(encoding='utf8'))
ssh.close()

结合多线程

from settings import pool
import paramiko, threading


class ParamikoThreading(threading.Thread):
    def __init__(self, host, username, password, port=22, command='ip a'):
        self.host = host
        self.username = username
        self.password = password
        self.port = port
        self.command = command
        super(ParamikoThreading,self).__init__()

    def run(self) -> None:
        ssh=paramiko.SSHClient()
        know_hosts=paramiko.AutoAddPolicy()
        ssh.set_missing_host_key_policy(know_hosts)
        ssh.connect(
            hostname=self.host,
            port=self.port,
            username=self.username,
            password=self.password
        )
        stdin,stdout,stderr=ssh.exec_command(self.command)
        print('*'*60)
        print('ip:%s,\ncommand:%s,\n' % (self.host,self.command))
        print(stdout.read().decode(encoding='utf8'))
        print('*'*60)
        ssh.close()

if __name__ == '__main__':
    command='ip a'
    t_pool=[]
    for host in pool:
        t=ParamikoThreading(
            host=host.get('host','localhost'),
            username=host.get('username','root'),
            password=host.get('password','aegis'),
            command=command
        )
        t_pool.append(t)
    for t in t_pool:
        t.start()
    for t in t_pool:
        t.join()

settings.py

pool=[
    dict(host='192.168.100.41',username='root',password='aegis'),
    dict(host='192.168.100.42',username='root',password='aegis'),
    dict(host='192.168.100.43',username='root',password='aegis'),
]

交互式链接

import paramiko
ssh=paramiko.SSHClient()
know_hosts=paramiko.AutoAddPolicy()
ssh.set_missing_host_key_policy(know_hosts)
ssh.connect(
    hostname='192.168.100.41',
    username='root',
    password='aegis',
    port=22
)
shell=ssh.invoke_shell()
shell.settimeout(1)

command=input('>>>'+'\n')
shell.send(bytes(command,encoding='utf8'))
while True:
    try:
        recv=shell.recv(1024).decode(encoding='utf8',errors='ignore')
        if recv:
            print(recv)
        else:
            continue
    except:
        command=input('>>>'+'\n')
        shell.send(bytes(command,encoding='utf8'))

ssh.close()

sftp文件upload and download

import paramiko
trans=paramiko.Transport(
    sock=('192.168.100.41',22)
)

trans.connect(
    username='root',
    password='aegis'
)
sftp=paramiko.SFTPClient.from_transport(trans)
# upload
# sftp.put('settings.py','/root/settings.py')
# download 
sftp.get('/root/oom.c','oom.c')
sftp.close()